28003492

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:137

約数の個数: 72

約数和(自身を含む): 59143392

約数和(自身を除く): 31139900

約数列:

[1, 2, 4, 11, 19, 22, 38, 41, 43, 44, 76, 82, 86, 164, 172, 209, 361, 418, 451, 473, 722, 779, 817, 836, 902, 946, 1444, 1558, 1634, 1763, 1804, 1892, 3116, 3268, 3526, 3971, 7052, 7942, 8569, 8987, 14801, 15523, 15884, 17138, 17974, 19393, 29602, 31046, 33497, 34276, 35948, 38786, 59204, 62092, 66994, 77572, 133988, 162811, 170753, 325622, 341506, 368467, 636443, 651244, 683012, 736934, 1272886, 1473868, 2545772, 7000873, 14001746, 28003492]

約数ペア:

[(1, 28003492), (2, 14001746), (4, 7000873), (11, 2545772), (19, 1473868), (22, 1272886), (38, 736934), (41, 683012), (43, 651244), (44, 636443), (76, 368467), (82, 341506), (86, 325622), (164, 170753), (172, 162811), (209, 133988), (361, 77572), (418, 66994), (451, 62092), (473, 59204), (722, 38786), (779, 35948), (817, 34276), (836, 33497), (902, 31046), (946, 29602), (1444, 19393), (1558, 17974), (1634, 17138), (1763, 15884), (1804, 15523), (1892, 14801), (3116, 8987), (3268, 8569), (3526, 7942), (3971, 7052)]